Yamaha MIO Service Manual page 272

EAS00758
3. Starter motor
• Connect the positive battery terminal 1
and starter motor lead 2 with a jumper
lead 3.
WARNING
_
• A wire that is used as a jumper lead
must have at least the same capacity or
more as that of the battery lead, other-
wise the jumper lead may burn.
• This check is likely to produce sparks,
therefore make sure nothing flammable
is in the vicinity.
• Does the starter motor turn?
YES
ELECTRIC STARTING SYSTEM
NO
Repair or replace the
starter motor.
EAS00761
4. Starter relay
• Disconnect the starter relay coupler from
the starter relay.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the starter relay terminal as
shown.
Positive battery terminal → blue/white 1
Negative battery terminal → gray 2
Positive tester probe → red 3
Negative tester probe → red/white 4
3
R
R/W
4
• Does the starter relay have continuity
between red and red/white?
7 - 18
ELEC
R
Gy
1 2
YES
Replace the starter
relay.
– +
R/W
L/W
NO